Hi,
On 2/25/25 4:38 PM, Christoph Hellwig wrote:
...
Then we have new (undocumented) value for NVMe in
- /sys/block/<nvme>/integrity/metadata_bytes
This contains the correct 64.
Yes, this contains the full size of the metadata. And besides
documenting it we should probably also lift it to the block layer.
yes, this is exactly what I need, just it should be present
for all block devices.
Anyway, when I try to use it (for authentication tags in dm-crypt), it works.
Should tag_size and device_is_integrity_capable be set even for the "nop" format?
Is it a bug or a feature? :-)
It is expected. The only issue is that the block support for metadata
is called integrity all over because it was initially added for PI only
and then extended for non-PI metadata, which makes things a little
confusing.
ok, that make sense. Maybe the note should be added to sysfs doc too.
Thanks,
Milan
